2553399 has 12 divisors (see below), whose sum is σ = 3749512. Its totient is φ = 1674000.

The previous prime is 2553389. The next prime is 2553403. The reversal of 2553399 is 9933552.

It is not a de Polignac number, because 2553399 - 2⁹ = 2552887 is a prime.

It is an Ulam number.

It is a Duffinian number.

2553399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1777 + ... + 2874.

2^2553399 is an apocalyptic number.

2553399 is a deficient number, since it is larger than the sum of its proper divisors (1196113).

2553399 is a wasteful number, since it uses less digits than its factorization.

2553399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718 (or 4715 counting only the distinct ones).

The product of its digits is 36450, while the sum is 36.

The square root of 2553399 is about 1597.9358560343. The cubic root of 2553399 is about 136.6803958711.

The spelling of 2553399 in words is "two million, five hundred fifty-three thousand, three hundred ninety-nine".